NVIC Method

Show NVIC method.

STCW Competence Knowledge, Understanding, and Proficiency

Operate main and auxiliary machinery and associated control systems

OICEW-A4.1 Basic construction and operation principles of machinery systems,

Condition Behavior Standard

On a steam vessel of at least 1,000 HP, on a simulator, or in a laboratory,

the candidate secures a main propulsion boiler.

Note 1

A candidate who does not perform this task will receive an endorsement that is not valid for steam vessels.

The candidate:

  1. Cracks open superheater vent;

  2. Secures fires, leaving register open slightly to keep dripping oil from burner tip, being careful not to cool furnace too rapidly;

  3. Closes auxiliary steam stop and main & auxiliary feed stops;

  4. Closes fuel oil burner root valves;

  5. As steam pressure and water level drop, maintains several inches of water in the gauge glass using the chemical feed line;

  6. When drum pressure reaches recommended pressure, opens drum vent;

  7. When all pressure is off the drum, opens superheater drain, closes the drum feed stop;

  8. Ensures that all operations are in accordance with manufacturer’s recommended procedures; and

  9. Takes proper action to prevent safety and pollution violations.

MMA Method

In order to satisfy NVIC 17-14 Task 4.1.C , MMA students must:

  • Successfully complete MMA Assessment OICEW-5-2B Secure main boiler